Melissa has a secret, Hanna has a new haircut, and Aria is losing it. Also dead bodies keep popping up in the Hastings back yard. The new season of Pretty Little Liars is just three episodes old and already it's had enough chills and thrills for a whole season.

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The mystery of what secret Melissa and Papa Hastings share is becoming too big for the rest of the family to ignore, while Alison's continued presence in the town is throwing the delicate Rosewood equilibrium out of whack. You know things are dire when Ezra seems like a solid choice to share a big, dark, murderous secret.

Before the next new episode, there are plenty of questions to ponder: Just who is this new girl Sydney and can she be trusted? What is Alison really up to? And should the girls be more worried about Aria...or Hana?

We'll have to wait until the next new episode to find out, but until then take a look at four sneak peeks of Pretty Little Liars, courtesy of ABC Family:

What We Know Now:

Spencer keeps trying to tell her mother that Melissa has a potentially murderous secret and that her dad is in on it. Veronica Hastings, however, is hearing none of that. At the moment Spencer begins talking about Melissa's weird behavior, Veronica turns on her super WASP repression powers and focuses instead on what the crime scene is doing to their backyard. The horror.

What We Know Now:

Emily is still training new girl Sydney, using the time away from home to avoid all of her mom's questions about Alison. But it seems like there's trouble in paradise between Emily and Alison, since Emily ignores her call. And things are very much still Facebook status "it's complicated" between Emily and Paige when the two have an awkward moment in the locker room.

What We Know Now:

While the girls eat outside, everyone in the entire high school stares at them. When Mona shows up, Aria begins to unravel about her knowledge of their presence in New York and what she might know about Shana. "You need to take a psychological selfie right now," Spencer advises, "because you're letting your paranoia get the best of you."

What We Know Now:

Alison is trying to get Emily to call her back, with little luck. While the A into Alison thing was a neat touch, does anyone under the age of 70 actually sign their text messages? I mean, presumably Alison is in Emily's phone book. She knows who's texting!

Ali's dad tells her the police need her to come in to take a medical exam, and then breaks down at the idea of her being "hurt." Alison begs to get out of it, but it looks like this is one battle she might end up losing.

Not enough Liars goodness for you? Check out the preview for next week's intense new episode below:

What do you think? How long can Ali avoid the police? How long can Emily avoid Alison? And just what did Melissa actually do? Share your theories in the comments!